Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
09-02-2012, 10:27 AM - 1 Like   #1
Veteran Member
manacho2005's Avatar

Join Date: Oct 2011
Location: Red Oak, TX
Photos: Gallery | Albums
Posts: 462
Sigma 170-500mm F5-6.3 APO

I have the non-DG version; with a little practice, it produces pretty crisp images.

09-08-2012, 04:50 AM   #2
Veteran Member
mickey's Avatar

Join Date: Oct 2008
Location: Japan
Photos: Gallery | Albums
Posts: 1,146
Fine examples.
I'm still looking into a 500mm lens and this is on the short list.
Price is a factor and don't think I can afford the Bigma secondhand.

Probably between this and the 170-500.
11-15-2013, 03:34 PM - 3 Likes   #3
Senior Member
OJGoreng's Avatar

Join Date: Jun 2010
Location: Amsterdam
Photos: Gallery
Posts: 197
This is my walkaround lens . Mine's the old, cheap, non-DG version as well. Here's a few examples; be aware these all have been cropped to some extent, and had some post-processing (exposure correction and a fairly conservative bit of USM) applied. I horribly suck a post-processing, generally leading to me overdoing it, so take that for whatever it's worth. All shots taken with a K-5 mostly @500mm, supposedly the "bad" end of the focus range; if you want to see the EXIF data, additional info or a larger format, just click through for the versions on Flickr. All animals pictured are wildlife, mostly shot in or around Amsterdam.


Despite the distance, the coded research tag could still be read after blowing up the image; this young Caspian gull in Amsterdam turned out to have been ringed as a chick in southern Poland.

From a tripod:

02-24-2015, 11:15 PM   #4
Loyal Site Supporter
Loyal Site Supporter
Des's Avatar

Join Date: Jan 2014
Location: Victoria Australia
Photos: Albums
Posts: 6,422
These are also from the non-DG version (which I have recently sold). I found that the best results have come when the lens is stopped down one or two stops (f8-f10 at the long end). Even then most shot benefit from increasing the contrast and vibrancy in PP. Some shots showed significant falloff of light from centre to edge, so vignetting correction may be required. The lens also does much better when the subject is not too distant (say within 20m).

This sequence taken at 170mm, 250mm, 300mm. 400mm and 500mm. All handheld, f8.

Some shots in the field.

---------- Post added 02-25-15 at 05:31 PM ----------

Last edited by Des; 02-24-2015 at 11:29 PM.

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, flickr, lens, pentax lens, sample photo, shots, sigma 170-500mm f5-6.3
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: Sigma 170-500mm f/5-6.3 APO for Pentax GvilleRick Sold Items 10 08-02-2012 12:13 PM
Sigma 170-500mm F5.6/6.3 APO DG lens Mapleleaf-Mick Pentax K-5 & K-5 II 3 01-24-2012 06:18 PM
For Sale - Sold: Sigma 170-500mm f5-6.3 APO Lens stormtech Sold Items 8 10-24-2011 03:36 PM
For Sale - Sold: Sigma 170-500mm APO 5-6.3 for K mount (US) shimoyjk Sold Items 4 01-20-2011 06:21 PM
For Sale - Sold: Sigma 170-500mm APO, Like New (Worldwide) dumrox Sold Items 6 01-19-2011 03:25 PM

All times are GMT -7. The time now is 09:54 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]